434021403 has 8 divisors (see below), whose sum is σ = 592153408. Its totient is φ = 282618504.

The previous prime is 434021387. The next prime is 434021437. The reversal of 434021403 is 304120434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 434021403 - 2⁴ = 434021387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 434021403.

It is not an unprimeable number, because it can be changed into a prime (434021603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1682125 + ... + 1682382.

It is an arithmetic number, because the mean of its divisors is an integer number (74019176).

Almost surely, 2^434021403 is an apocalyptic number.

434021403 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

434021403 is a deficient number, since it is larger than the sum of its proper divisors (158132005).

434021403 is a wasteful number, since it uses less digits than its factorization.

434021403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364553.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 434021403 is about 20833.1803381049. The cubic root of 434021403 is about 757.1298735318.

Adding to 434021403 its reverse (304120434), we get a palindrome (738141837).

The spelling of 434021403 in words is "four hundred thirty-four million, twenty-one thousand, four hundred three".